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NCI Dictionary of Cancer Terms


monoamine oxidase inhibitor  listen  (MAH-noh-uh-MEEN OK-sih-days in-HIH-bih-ter)

  A type of drug used to treat depression. It stops the breakdown of certain chemicals in the brain that help improve a person’s mood. A monoamine oxidase inhibitor is a type of antidepressant. Also called MAO inhibitor.